Alvin and the Chipmunks: The Road Chip The film begins with Alvin (Justin Long), Simon (Matthew Gray Gubler), and Theodore (Jesse McCartney), along with The Chipettes - Brittany (Christina Applegate), Jeanette (Anna Faris) and Eleanor (Kaley Cuoco) - setting up a surprise birthday bash for Dave (Jason Lee) that also serves as a going away party for The Chipettes, who are moving out on their own to be guest judges on American Idol. Alvin invites and hires many people and celebrities to the dismay of Simon, before Dave returns home in dissatisfaction. Nevertheless, Dave agrees to take them to mini-golf, and meet the woman he has been dating for the past few months. While the Chipmunks like Samantha (Kimberly Williams-Paisley), her son Miles (Josh Green) is a bully who physically abuses the trio. Later, the Chipmunks find an engagement ring in a bag Dave brought home and believe that he's going to propose to Samantha. They try to steal the ring but are unsuccessful...